CN215812601U

CN215812601U - FID detector analysis device

Info

Publication number: CN215812601U
Application number: CN202121820919.7U
Authority: CN
Inventors: 谢峰; 张成双
Original assignee: Shanghai Nuoyu Testing Technology Co ltd
Current assignee: Shanghai Nuoyu Testing Technology Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-02-11
Anticipated expiration: 2031-08-05

Abstract

The utility model provides a FID detector analytical equipment, relates to detector analytical equipment technical field, including FID dustcoat, advance kind base, heater strip power spring top, heater strip power interface contact pin, collector, collection signal line, hydrogen air inlet and appearance gas air inlet, be provided with the ionization chamber in the FID dustcoat, FID dustcoat top is provided with the nut lid, the inside both sides of ionization chamber are provided with the ceramic heating fixing base, the heater strip is connected between the ceramic heating fixing base, the collector with the heater strip all sets up in the ionization chamber. According to the utility model, the collector and the heating wire can be taken out for maintenance and cleaning by disassembling the nut cover, and the sample injection base is in threaded sealing connection with the FID outer cover, so that the sample injection base is convenient to disassemble, clean and maintain.

Description

FID detector analysis device

Technical Field

The utility model relates to the technical field of detector analysis devices, in particular to an FID detector analysis device.

Background

FID (flame ionization detector) is called a hydrogen flame ionization detector because hydrogen gas is generally used. The hydrogen flame ionization detector is composed of a nozzle, an ignition coil, a polarizing electrode, a collector and the like. The FID detector is a high-sensitivity general-purpose detector, which has response to almost all organic substances, has no response or little response to inorganic substances, inert gases or substances which are not dissociated in flames, has sensitivity which is 100-10000 times higher than that of a thermal conductivity detector, has a detection limit of 10-13g/s, is insensitive to temperature and fast in response, is suitable for being connected with an open tubular column to separate complex samples, has the linear range of 10 to the power of 7, is a means with the best sensitivity to hydrocarbons (such as butane and hexane) in a gas chromatography detector, and is widely used for detecting volatile hydrocarbons and a plurality of carbon-containing compounds.

In an FID detector, hydrogen is required to be ignited to form hydrogen flame, sample gas is combusted to be ionized, an ion signal is collected by a collector, and the sample gas is detected; because the sample contains a plurality of components, the residual substances of sample gas combustion after frequent use are adsorbed on the FID collector, and the FID collector needs to be cleaned regularly.

However, the existing FID has the defects that the heating wire and the collector are difficult to disassemble and the maintenance cost is high, so that a novel-structure FID detector is provided, and the heating wire and the collector are convenient to disassemble and clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides an FID detector analysis device. Its advantages are easy detaching and cleaning of heater and collector, and small size.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a FID detector analytical equipment, includes the FID dustcoat, advances kind base, heater strip power spring top, heater strip power interface contact pin, collector, collection signal line, hydrogen air inlet and appearance gas air inlet, be provided with the ionization chamber in the FID dustcoat, FID dustcoat top screw thread is provided with the nut lid, the inside both sides of ionization chamber are provided with the ceramic heating fixing base, the heater strip is connected between the ceramic heating fixing base, the collector with the heater strip all sets up in the ionization chamber.

Through the technical scheme: when the hydrogen flame ionization device is used, hydrogen enters the ionization chamber through the hydrogen inlet, and the hydrogen is ignited by the heating wire to form hydrogen flame; sample gas enters the ionization chamber through a sample gas inlet, ionization is formed under hydrogen ion flame, ionized ions are accelerated through an ionization electric field between a hydrogen gas inlet and a collector, signals are captured by the collector and are output to a data end through a collecting signal line for analysis; the collector and the heating wire can be taken out for maintenance and cleaning by disassembling the nut cover.

The utility model is further provided that the nut cover is of a circular structure, the diameter of the nut cover is larger than that of the ionization chamber, and the nut cover is in threaded connection with the top of the FID outer cover.

Through the technical scheme: the nut cover is of a circular structure and is in threaded connection with the top of the FID outer cover, so that the nut cover is convenient to disassemble and covers the ionization chamber.

The utility model is further provided that the nut cover is provided with a notch.

Through the technical scheme: due to the arrangement of the notches, the notches of workers are convenient to use, the nut covers are rotated, the ceramic heating fixing seats and the collectors are convenient to disassemble and take out, and the heating wires and the collectors are cleaned and maintained.

The utility model is further provided that a ceramic heat-insulating ring is arranged between the nut cover and the periphery of the ionization chamber.

Through the technical scheme: due to the arrangement of the ceramic heat insulation ring, scalding when the ceramic heating fixing seat and the collector are taken out is prevented.

The utility model is further arranged that the hydrogen gas inlet and the sample gas inlet penetrate through the bottom end of the sample introduction base to be communicated with the ionization chamber.

Through the technical scheme: because the hydrogen gas inlet and the sample gas inlet are communicated with the ionization chamber, ionization is easily formed under hydrogen ion flame.

The utility model is further provided that the FID outer cover and the sample introduction base are arranged to be circular structures, and the top of the FID outer cover is of an I-shaped structure.

Through the technical scheme: because the FID dustcoat sets up to circular structure with advancing the appearance base for it is small and exquisite convenient more, FID dustcoat top is I-shaped structure, convenient operation.

The utility model is further provided that the middle part of the nut cover is provided with a through hole, and the through hole is communicated with the ionization chamber.

Through the technical scheme: due to the arrangement of the through holes, the combustion gas and the water vapor escape from the through holes.

The utility model is further provided that the sample introduction base is in threaded sealing connection with the FID outer cover, and a sealing coil is connected at the connection part of the sample introduction base and the FID outer cover.

Through the technical scheme: because advance kind base and FID dustcoat thread sealing connection, conveniently dismantle clearance and maintenance to advancing kind the base.

The utility model has the beneficial effects that:

1. according to the FID detector analysis device, hydrogen enters an ionization chamber through a hydrogen inlet, and the hydrogen is ignited by a heating wire to form hydrogen flame; sample gas enters the ionization chamber through a sample gas inlet, ionization is formed under hydrogen ion flame, ionized ions are accelerated through an ionization electric field between a hydrogen gas inlet and a collector, signals are captured by the collector and are output to a data end through a collecting signal line for analysis; the collector and the heating wire can be taken out for maintenance and cleaning by disassembling the nut cover.

2. This FID detector analytical equipment through being provided with the nut lid, because nut lid and FID dustcoat top threaded connection for the nut lid can be dismantled, conveniently takes out ceramic heating fixing base and collector, clears up the maintenance to heater strip and collector.

3. This FID detector analytical equipment, through advancing kind base and FID dustcoat thread sealing connection, and advance the junction of kind base and FID dustcoat and be connected with sealing coil, the clearance is dismantled and is maintained to advancing kind the base to the convenience.

Drawings

FIG. 1 is a schematic perspective view of an FID detector analysis apparatus according to the present invention;

FIG. 2 is a schematic side view of an FID detector analysis apparatus according to the present invention;

fig. 3 is a schematic cross-sectional structural diagram of an FID detector analysis apparatus according to the present invention.

In the figure: 1. an FID housing; 101. an ionization chamber; 2. a sample introduction base; 3. a ceramic heating fixing seat; 4. heating wires; 5. ejecting a power supply of the heating wire; 6. inserting pins on the power interface of the heating wire; 7. a collector; 8. collecting the signal lines; 9. a ceramic heat insulating ring; 10. a nut cover; 1001. a through hole; 11. a hydrogen gas inlet; 12. and a sample gas inlet.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, an FID detector analytical equipment, including

FID dustcoat

1, 1 bottom of FID dustcoat is connected with advances kind base 2, be provided with heater strip 4 in the FID dustcoat 1, heater strip 4 is connected with heater strip power spring top 5, heater strip power spring top 5 is connected with heater strip power interface contact pin 6, be provided with collector 7 in the FID dustcoat 1, collector 7 is connected and is collected

signal line

8, 2 bottom through connection have hydrogen gas inlet 11 and appearance gas inlet 12 of advancing kind base, 1 interior ionization chamber 101 that is provided with of FID dustcoat, 1 top screw thread of FID dustcoat is provided with nut lid 10, the inside both sides of ionization chamber 101 are provided with ceramic heating fixing base 3, heater strip 4 is connected between ceramic heating fixing base 3, collector 7 and heater strip 4 all set up in ionization chamber 101.

Specifically, the nut cover 10 is of a circular structure, the diameter of the nut cover 10 is larger than that of the ionization chamber 101, the nut cover 10 is in threaded connection with the top of the FID housing 1, and the nut cover 10 is of a circular structure and is in threaded connection with the top of the FID housing 1, so that the nut cover 10 is convenient to detach and covers the ionization chamber 101.

Specifically, be provided with the notch on the nut lid 10, because the setting of notch, the staff of being convenient for withstands the notch, rotates nut lid 10, and the convenient dismantlement is taken out and is taken out ceramic heating fixing base 3 and collector 7, clears up the maintenance to heater strip 4 and collector 7.

Specifically, a ceramic heat insulation ring 9 is arranged between the nut cover 10 and the periphery of the ionization chamber 101, and due to the arrangement of the ceramic heat insulation ring 9, the ceramic heating fixing seat 3 and the collector 7 are prevented from being scalded when being taken out.

Specifically, the hydrogen gas inlet 11 and the sample gas inlet 12 penetrate through the bottom end of the sample injection base 2 to be communicated with the ionization chamber 101, and because the hydrogen gas inlet 11 and the sample gas inlet 12 are communicated with the ionization chamber 101, ionization is easily formed under hydrogen ion flame.

Specifically, FID dustcoat 1 sets up to circular structure with advancing

kind base

2, and 1 top of FID dustcoat is the I-shaped structure, because FID dustcoat 1 sets up to circular structure with advancing kind base 2 for it is more small and exquisite convenient, and 1 top of FID dustcoat is the I-shaped structure, convenient operation.

Specifically, the nut cover 10 is provided with a through hole 1001 in the middle, the through hole 1001 is communicated with the ionization chamber 101, and combustion gas and water vapor escape from the through hole 1001 due to the through hole 1001.

Concretely, advance kind base 2 and FID dustcoat 1 thread sealing connection, and advance kind base 2 and FID dustcoat 1 junction and be connected with sealing coil, because advance kind base 2 and FID dustcoat 1 thread sealing connection, the convenience is dismantled clearance and is maintained advancing kind base 2.

The working principle is as follows: when the hydrogen flame ionization device is used, hydrogen enters the ionization chamber 101 through the hydrogen inlet 11, and the hydrogen is ignited by the heating wire 4 to form hydrogen flame; sample gas enters the ionization chamber 101 through the sample gas inlet 12, ionization is formed under hydrogen ion flame, ionized ions are accelerated through an ionization electric field between the hydrogen gas inlet 11 and the collector 7, signals are captured by the collector 7, and the signals are output to a data end for analysis through the collecting signal line 8; the collector 7 and the heating wire 4 can be taken out for maintenance and cleaning by disassembling the nut cover 10.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a FID detector analytical equipment, includes FID dustcoat (1), advances kind base (2), heater strip (4), heater strip power spring top (5), heater strip power interface contact pin (6), collector (7), collects signal line (8), hydrogen air inlet (11) and appearance gas inlet (12), its characterized in that, be provided with ionization chamber (101) in FID dustcoat (1), FID dustcoat (1) top screw thread is provided with nut lid (10), ionization chamber (101) inside both sides are provided with ceramic heating fixing base (3), heater strip (4) are connected between ceramic heating fixing base (3), collector (7) with heater strip (4) all set up in ionization chamber (101).

2. An FID detector analysis device according to claim 1, characterized in that the nut cap (10) is of circular configuration and the diameter of the nut cap (10) is larger than the diameter of the ionization chamber (101).

3. An FID detector analysis device according to claim 2, characterized in that the nut cover (10) is provided with notches.

4. An FID detector analysis device according to claim 1, characterized in that a ceramic insulating ring (9) is arranged between the nut cap (10) and the outer periphery of the ionization chamber (101).

5. An FID detector analysis device according to claim 1, wherein the hydrogen gas inlet (11) and the sample gas inlet (12) communicate with the ionization chamber (101) through the bottom end of the sample base (2).

6. An FID detector analysis device according to claim 1, characterized in that the FID housing (1) and the sample introduction base (2) are arranged in a circular structure, and the top of the FID housing (1) is in an I-shaped structure.

7. An FID detector analysis device according to claim 1, characterized in that the nut cover (10) is provided with a through hole (1001) in the middle, said through hole (1001) being provided in communication with said ionization chamber (101).

8. An FID detector analysis device according to claim 1, characterized in that the sample introduction base (2) is in thread sealing connection with the FID housing (1), and a sealing coil is connected to the connection of the sample introduction base (2) and the FID housing (1).